G01N 21/72
Using flame burners
Official title: using flame burners
G01N21/72 (Using flame burners) appears on 127 US grants and 70 published applications in this corpus.
Search patents in G01N- Granted patents
- 127
- Published applications
- 70
- Assignees
- 102
- Inventors
- 319
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 3 |
| 2004 | 6 | 6 |
| 2005 | 4 | 5 |
| 2006 | 0 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 3 | 4 |
| 2012 | 2 | 6 |
| 2013 | 4 | 4 |
| 2014 | 2 | 2 |
| 2015 | 3 | 3 |
| 2016 | 5 | 2 |
| 2017 | 4 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 4 |
| 2022 | 4 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Burning device for combustion calorimetry and combustion analysis of polymeric materials4 Feb 2025US 12,215,858 B2Sichuan University
- Flame module for a spectrometer9 Apr 2024US 11,953,203 B2Thermo Fisher Scientific (Bremen) GmbH
- Device and method for simultaneously measuring mercury, cadmium, zinc and lead12 Sep 2023US 11,754,494 B2Changsha Kaiyuan Hongsheng Technology Co., Ltd
- Smoke point automatic correction21 Mar 2023US 11,609,197 B2AD Systems S.A.S.
- Flame photometric detector22 Nov 2022US 11,506,643 B2Rosemount Inc.
- Flame-based detectors with protected ignitor10 Sep 2026US 2026/0266732 A1Agilent Technologies, Inc.
- Flame Atomic Absorption Photometer26 Mar 2026US 2026/0086025 A1Shimadzu Corporation
- Automated method of evaluating candle burn performance25 Dec 2025US 2025/0389679 A1Premier Candle Corp.
- Burning device for combustion calorimetry and combustion analysis of polymeric materials9 Jan 2025US 2025/0012438 A1Sichuan University
- Taggant systems and methods of use15 Aug 2024US 2024/0272075 A1University of Northern Iowa Research Foundation
Most cited
By later US patents
- Infrared emission detection of a gas104US 5,473,162 ABaylor University · 1995
- Body fluid and blood electrolyte analyzer71US 4,054,415 AYale University · 1977
- Infrared emission detection71US 5,246,868 AResearch Corporation Technologies, Inc. · 1993
- Intelligent flame scanner34US 7,289,032 B2ALSTOM Technology Ltd · 2007
- Real-time alkali monitoring system33US 4,896,965 AThe United States of America as represented by the United States Department of Energy · 1990